The Green Lion Chrono Pro Smart Watch is a wearable with a 1.6-inch AMOLED display, Bluetooth calling, and over 100 sports modes. It features a zinc alloy frame, IP68 water resistance, a 360mAh battery offering 5-7 days of use and up to 25 days of standby, and connects via Bluetooth 5.3 + 3.0. Key functions include heart rate monitoring, sleep tracking, and other health and fitness features, along with notification and music controls.